What is "hiders"

Usage examples of "hiders".

He could hear the soft rustle of their passage, and once or twice when they passed near a clump of shrubbery he thought he caught the echo of little whispering calls, gentle as the rustle of leaves and somehow full of a strange warning note so clear that he caught it even amid the murmur of their speee Warning calls, and little furtive hiders in the leaves, and a landscape of tapestried blurring carpeted with Botticelli flower-strewn sward.